Fear is an emotion which causes physiological changes and ultimately behavioural changes, such as mounting an aggressive response or fleeing the threat.
Buddha was born in India between 5th to 4th BCE. He is the founder of Buddhism. His teachings are based around Duhkha (suffering) and how to end it.
Karma in simple terms means action. It is the spiritual equivalent to Newton’s Law of motion – for every action there is an equal reaction.